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3 years ago

Most paper does not reflect light very well because its surface is somewhat rough. T or F

Physics

2 answers:

labwork [276]3 years ago

7 0

Answer:

True

Explanation:

There are two types of reflection.

From the rough surface the diffused reflection takes place.

According to diffused reflection, when parallel beam of light falls on a rough surface, then after reflection they bounce back in different directions, so it means they do not reflect light properly.

Sloan [31]3 years ago

3 0

I think the correct answer is true. Most paper does not reflect light very well because its surface is somewhat rough. Light only reflects to surfaces which has a smooth texture or have a uniform texture on the surface. Hope this answers the question. Have a nice day.

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The answer is polarity

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A student claims that water's polarity is the reason it has a high specific heat. What method could the student use to test his

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2 years ago

Am radio signals have frequencies between 550 khz and 1600 khz (kilohertz) and travel with a speed of 3.00 ✕ 108 m/s. what are t

Allisa [31]

The minimum frequency is
$f_1 = 550 kHz = 5.50 \cdot 10^5 Hz$
while the maximum frequency is
$f_2 = 1600 kHz = 1.6 \cdot 10^6 Hz$
Using the relationship between frequency f of a wave, wavelength $\lambda$ and the speed of the wave v, we can find what wavelength these frequencies correspond to:
$\lambda_1 = \frac{v}{f_1}= \frac{3 \cdot 10^8 m/s}{5.5 \cdot 10^5 Hz}=545 m$
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So, the wavelengths of the radio waves of the problem are within the range 188-545 m.

5 0

2 years ago

A square boat made from iron has overall dimensions of 2.00 cm x 11.0 cm x 11.0 cm. It has a mass of 213 g. What is its density?

kupik [55]

<u>Answer:</u> The density of boat is $0.88g/cm^3$

<u>Explanation:</u>

To calculate the volume of boat, we use the equation:

$V=lbh$

where,

V = volume of boat

l = length of boat = 2.00 cm

b = breadth of boat = 11.0 cm

h = height of boat = 11.0 cm

Putting values in above equation, we get:

$V=2.00\times 11.0\times 11.0=242cm^3$

To calculate density of a substance, we use the equation:

$\text{Density of a substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}$

We are given:

Mass of boat = 213 g

Volume of boat = $242cm^3$

Putting values in above equation, we get:

$\text{Density of boat}=\frac{213g}{242cm^3}\\\\\text{Density of boat}=0.88g/cm^3$

Hence, the density of boat is $0.88g/cm^3$

6 0

3 years ago

Read 2 more answers

Which compound is composed of oppositely charged ions

Yuki888 [10]

Answer:

Na20

Explanation:

Compound having oppositely charged ions are considered as ionic compounds.

Ionic compounds are formed when complete transfer of electrons takes place between the atoms forming a bond. This bond is formed between a metal and a non-metal or a polyatomic cation and an non-metal or a metal and a polyatomic anion. For Example: etc..

Covalent compounds are formed when sharing of electrons takes place between the atoms forming a bond. This bond is formed between two non-metals. For Example: etc..

Read more on Brainly.com - brainly.com/question/6240401#readmore

7 0

2 years ago